If we have to choose a director that changed the cinema in a decisive way, for nearly forty years, that is without a shadow of a doubt Alfred Hitchcock. He directed more than fifty movies and is still today inspirational for directors and an enchantment for movie lovers all around the world. His movies are timeless and classics such as Vertigo or North by Northwest will always be remembered. Alfred Hitchcock is one of the few directors that never made a bad movie. Perhaps he is joined only by Coppolla or Scorsese here. The Man Who Knew Too Much is the only remake that Hitchcock directed. And it's a remake of a movie he directed in England in the thirties. And why did he did it? I think he knew that the screenplay was one of the best he ever had. And I suppose he thought that the movie with Leslie Banks and Peter Lorre was not perfect and could be improved. One of the improvements was James Stewart. He can play any part making us identify with him as the "common man". And Doris Day is here very well, with a face that passes to us all the drama of a mother fearing for her son's life. Since the beginning, the tension will rise slowly but inexorably, without being to intrusive or obvious, till it be suffocating in the Albert Hall scene, with the tremendous help of the music by Bernard Hermann.